as Jack Livingston
as Dr. George Wainright
as Douglas Ferguson
as Aaron King - Art
as Reginald Dunstan
as Dr. Niblock (as Jack Livingstone)
as Stephen Pachmann (as Jack Livingstone)
as Rolf Rutherford
as Sid Wilson
as Claude Roberts
as Charles Lunkin
as Capt. James Morrison
as Dr. Howard
as Randolph Shaw
as Captain Drake
as Brian Trelawney
as Dave Langdon
as Jim Gordon
as Patrick McCree
